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Robinson in The Conversation: How Gambling Distorts Reality and Hooks Your Brain

Wesleyan faculty frequently publish articles based on their scholarship in The Conversation US, a nonprofit news organization with the tagline, “Academic rigor, journalistic flair.” In a new article, Mike Robinson, assistant professor of psychology, writes that brain science explains how gambling games hook players, including casual ones. Robinson also is assistant professor of neuroscience and behavior, assistant professor of integrative sciences.

Designed to deceive: How gambling distorts reality and hooks your brain

To call gambling a “game of chance” evokes fun, random luck, and a sense of collective engagement. These playful connotations may be part of why almost 80 percent of American adults gamble at some point in their lifetime. When I ask my psychology students why they think people gamble, the most frequent suggestions are for pleasure, money, or the thrill.

While these might be reasons why people gamble initially, psychologists don’t definitely know why, for some, gambling stops being an enjoyable diversion and becomes compulsive. What keeps people playing even when it stops being fun? Why stick with games people know are designed for them to lose? Are some people just more unlucky than the rest of us, or simply worse at calculating the odds?

As an addiction researcher for the past 15 years, I look to the brain to understand the hooks that make gambling so compelling. I’ve found that many are intentionally hidden in how the games are designed. And these hooks work on casual casino-goers just as well as they do on problem gamblers.

Uncertainty as its own reward in the brain

One of the hallmarks of gambling is its uncertainty— whether it’s the size of a jackpot or the probability of winning at all. And reward uncertainty plays a crucial role in gambling’s attraction.

Studies have shown that the release of dopamine during gambling occurs in brain areas similar to those activated by taking drugs of abuse. In fact, similar to drugs, repeated exposure to gambling and uncertainty produces lasting changes in the human brain. These reward pathways, similar to those seen in individuals suffering from drug addiction, become hypersensitive. Animal studies suggest that these brain changes due to uncertainty can even enhance gamblers’ cravings and desire for addictive drugs.

Repeated exposure to gambling and uncertainty can even change how you respond to losing. Counterintuitively, in individuals with a gambling problem, losing money comes to trigger the rewarding release of dopamine almost to the same degree that winning does. As a result, in problem gamblers, losing sets off the urge to keep playing, rather than the disappointment that might prompt you to walk away, a phenomenon known as chasing losses.

Lights and sounds egg you on

But gambling is more than just winning and losing. It can be a whole immersive environment with an array of flashing lights and sounds. This is particularly true in a busy casino, but even a game or gambling app on a smartphone includes plenty of audio and visual frills to capture your attention.

Since games of chance are set up so the house always has an advantage, a gambler wins infrequently at best. You might only rarely experience the lights and sounds that come along with hitting a true jackpot. However, the gaming industry may have devised a way to overcome that issue.

Over the last few decades, casinos and game manufacturers significantly upgraded slot machines, retiring the old mechanical arms and reels in favor of electronic versions known as electronic gaming machines. These new computerized games and online slots come with more attractive colorful lights and a variety of sounds. They also possess more reels, ushering in a new era of multi-line video slot machines.

Having multiple lines enables players to place a bunch of bets per spin, often up to 20 or more. Although each individual bet can be small, many players place the maximum number of bets on each spin. This strategy means a player can win on some lines while losing on others, netting less than the original wager. Even when you “win,” you don’t come out ahead, a phenomenon known as “losses disguised as wins.” Yet each win, even when it is a loss disguised as a win, comes with the lights and sounds of victory.

The rise of electronic gambling machines also means that rather than being constrained by the physical arrangement of different possible outcomes on each reel, possible outcomes are programmed onto a set of virtual reels. Gaming designers can therefore stack the deck to make certain events occur more frequently than others.

When you engage in recreational gambling, you are not simply playing against the odds, but also battling an enemy trained in the art of deceit and subterfuge. Games of chance have a vested interest in hooking players for longer and letting them eventually walk away with the impression they did better than chance, fostering a false impression of skill.

For many people, these carefully designed outcomes enhance the satisfaction they get from gambling. It may remain easy for them to simply walk away when the chips run out.

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